DirSize is a command line tool that can be automated to generate nightly reports of disk space usage, network space hogs and very large folder trees. Reports can be sorted and small folders can be prevented from being displayed. Both 32 bit and 16 bit versions are included, all support long filenames. Full scrolling support in either direction. Now includes an HTML output option.

Uses include:

- Finding multiple copies of a single application on a server

- Finding which folders could be archived to save space (typically those that contain lots of small files)

- Finding where most of the disk space is used

- Previewing the benefits of a smaller cluster size

- Generating daily, weekly or monthly reports showing how the disk space distribution has changed. You can generate tab- or comma-delimited output to feed directly into your favorite spreadsheet for further analysis

- Showing you the complete folder tree